Princess Elizabeth (future Queen Elizabeth II), Philip Mountbatten (also the Duke of Edinburgh) and Princess Margaret pose in the Buckingham Palace on July 09, 1947 in London, the day their engagement was officially announced.

In Pictures: Prince Philip through the years

Prince Philip, The Duke of Edinburgh, shows his soft side in these endearing images

After a lifetime of public service by the side of his wife Queen Elizabeth II, Prince Philip finally retired on August 2, 2017,at the age of 96. The Duke of Edinburgh attended a parade of Royal Marines at Buckingham Palace, the last of 22,219 solo public engagements since she ascended to the throne in 1952.

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